Motor bearing heat causes and fat and fat experience

Motor bearing heat causes and experience of fat and fat 2019 - 06 - 03 motor bearing temperature basically has the following several reasons: 1, grease, brand is not appropriate. 2, grease quality is not good or bad. 3, bearing grease too little or too much room. 4, grease with sundry. 5, bearing, outer or inner ring. Six, bearing type is wrong, or quality is bad. 7, of the coupling. 8, belt pull too tight. 9, motor vibration is too large. Motor grease types: most of the high temperature of motor bearing is the cause of fatliquoring too much or too little. Have some experience for motor bearing fatliquoring summary: 1, the motor bearing grease can not mix. Oil mixture may produce oil hardening or agglomerate, causing the motor bearing heating. And motor bearing in the factory has to add grease, grease basically for ordinary lithium base grease, so the requirement before put into use new motor bearing oil change, oil processing. 2, replacing oil, Chen grease should be removed, and clean the bearing and the bearing cover, then add the new grease, plus the amount of grease to 1/2 - add to the bearing housing space - It is advisable to 2/3 ( Grease quantity for the 2 pole motor cavity 8 1/2, 4, 6 pole, pole motor bearing no fat mass for two-thirds of the cavity) 。 Such as grease too much or too little, will make bearing heat at work, cause the decomposition of the grease metamorphism. 3, the use of the motor should be lubricated periodically. Motor shell nameplate with time requirements are lubricated periodically according to the requirement, nameplate regularly according to machine specifications which do not require time for oil. General requirements for the running of motor bearing of 2000 ~ 3000 hours to fill oil, oil for 20 ~ 50 grams. Equipment for high load operation, refueling frequency can increase appropriately, equipment for a long time need not, amount to don't need that much, just a little added. 4, motor bearing oil requirements at runtime, requirements during oil filling zerk to wipe clean first, for oil won't add too much at a time, or bearing easy fever, do more harm than good. Can add a little first, observing the bearing and after any changes, such as temperature, sound, sound and vibration after lubrication bearing should be changed, must pay attention to the observation. Part 5, for high voltage motor and high power low voltage motor, sets of drainage hole at the bottom of the bearing cover, used to drain excess oil and use within the bearing after emulsification deteriorated after the waste oil, in principle should be emissions on a regular basis. Suggest that before and after filling oil in the motor oil should be clean oil discharge hole of waste oil. 6, using the environment is more dust or damp, high temperature environment, often should change the grease. Replacement should first bearing using kerosene, gasoline cleansing before they can clean the grease injection. After injecting grease in the bearing, motor rotor should be easy to pull (by hand. In July and have limited service life of motor bearing. In the case of normal fill oil, oil change, motor bearing fever, sound, and so on and so forth, should consider whether the motor bearing had come to life. Suggest three years to replace a normal operation of the motor bearings, for high load motor or dust easily into the bearing this time should be shortened, Suggestions for changing bearing a year. 8, the motor (with no lubrication Common for small power motor) Using bearing for closed bearing, the bearing without replacing grease during the service life of the period, can be carried out in accordance with the time change motor bearing bearing replacement. Motor bearing oil, the oil change should be used according to the scene to replenish to treat correctly, not immutable, to do regular check, found that the problem handled in time to make the machine keep good condition.